Brush head



FIG. 1 is a top view of a brush head, showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a side elevational view of the side opposite that shown in FIG. 2; and

FIG. 6 is a bottom view thereof. 

The ornamental design for a brush head, as shown. 